Home / 127,398.22-191,121.93-68,300.01

Finding the Fourth Proportional to 127,398.22, 191,121.93 and 68,300.01

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Solution

The fourth proportional to 127,398.22, 191,121.93 and 68,300.01 is: 102,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,398.22 : 191,121.93 = 68,300.01 : x
  2. Step 2: Convert to fraction form
    127,398.22/191,121.93 = 68,300.01/x
  3. Step 3: Cross multiply
    127,398.22x = 191,121.93 × 68,300.01
  4. Step 4: Simplify right side
    127,398.22x = 13,053,629,730.22
  5. Step 5: Solve for x
    x = 13,053,629,730.22/127,398.22
  6. Step 6: Final answer
    x = 102,463.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.